68729372672

Names of 68729372672

• Cardinal: 68729372672 can be written as Sixty-eight billion, seven hundred twenty-nine million, three hundred seventy-two thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 6.8729372672 × 10¹⁰

Factors of 68729372672

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 74

Divisors of 68729372672

• Number of divisors d(n): 136
• Complete list of divisors:
  1 2 4 8 16 29 32 43 58 64 86 116 128 172 232 256 344 464 512 688 841 928 1024 1247 1376 1682 1856 2048 2494 2752 3364 3712 4096 4988 5504 6728 7424 8192 9976 11008 13456 14848 16384 19952 22016 24389 26912 29696 32768 36163 39904 44032 48778 53824 59392 65536 72326 79808 88064 97556 107648 118784 144652 159616 176128 195112 215296 237568 289304 319232 352256 390224 430592 475136 578608 638464 704512 780448 861184 950272 1048727 1157216 1276928 1409024 1560896 1722368 1900544 2097454 2314432 2553856 2818048 3121792 3444736 4194908 4628864 5107712 6243584 6889472 8389816 9257728 10215424 12487168 13778944 16779632 18515456 20430848 24974336 27557888 33559264 37030912 40861696 49948672 55115776 67118528 74061824 81723392 99897344 134237056 148123648 199794688 268474112 296247296 399589376 536948224 592494592 799178752 1073896448 1184989184 1598357504 2147792896 2369978368 4295585792 8591171584 17182343168 34364686336 68729372672
• Sum of all divisors σ(n): 145677552240
• Sum of proper divisors (its aliquot sum) s(n): 76948179568
• 68729372672 is an abundant number, because the sum of its proper divisors (76948179568) is greater than itself. Its abundance is 8218806896

Bases of 68729372672

• Binary: 1000000000000100101110000000000000000₂
• Hexadecimal: 0x1000970000
• Base-36: VKNOZCW

Squares and roots of 68729372672

• 68729372672 squared (68729372672²) is 4723726667886660419584
• 68729372672 cubed (68729372672³) is 324658770557847058635100623208448
• The square root of 68729372672 is 262162.8743205261
• The cube root of 68729372672 is 4096.1966051463

Scales and comparisons

• 68,729,372,672 seconds is equal to 2,185 years, 19 weeks, 5 days, 20 hours, 24 minutes, 32 seconds.
• To count from 1 to 68,729,372,672 would take you about four thousand, three hundred seventy years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 68729372672 cubic inches would be around 341.3 feet tall.

Recreational maths with 68729372672

• 68729372672 backwards is 27627392786
• The number of decimal digits it has is: 11
• The sum of 68729372672's digits is 59
• More coming soon!